/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:32:54,493 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:32:54,548 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:32:54,570 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:32:54,570 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:32:54,571 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:32:54,571 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:32:54,572 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:32:54,572 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:32:54,572 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:32:54,572 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:32:54,573 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:32:54,573 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:32:54,573 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:32:54,573 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:32:54,574 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:32:54,574 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:32:54,574 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:32:54,574 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:32:54,574 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:32:54,575 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:32:54,577 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:32:54,577 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:32:54,577 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:32:54,580 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:32:54,580 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:32:54,580 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:32:54,581 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:32:54,581 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:32:54,582 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:32:54,582 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:32:54,583 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:32:54,583 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:32:54,584 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:32:54,584 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:32:54,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:32:54,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:32:54,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:32:54,803 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:32:54,804 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:32:54,805 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl [2023-10-12 17:32:54,805 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl' [2023-10-12 17:32:54,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:32:54,839 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:32:54,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:32:54,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:32:54,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:32:54,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,866 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:32:54,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:32:54,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:32:54,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:32:54,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:32:54,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,876 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:32:54,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:32:54,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:32:54,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:32:54,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/1) ... [2023-10-12 17:32:54,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:54,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:54,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:54,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:32:54,942 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:32:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:32:54,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:32:54,943 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:32:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:32:54,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:32:54,943 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:32:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:32:54,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:32:54,943 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:32:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:32:54,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:32:54,944 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:32:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:32:54,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:32:54,945 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:32:54,985 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:32:54,986 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:32:55,082 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:32:55,098 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:32:55,098 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:32:55,100 INFO L201 PluginConnector]: Adding new model hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:32:55 BoogieIcfgContainer [2023-10-12 17:32:55,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:32:55,101 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:32:55,101 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:32:55,103 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:32:55,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:32:55,104 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:54" (1/2) ... [2023-10-12 17:32:55,105 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7590e9c3 and model type hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:32:55, skipping insertion in model container [2023-10-12 17:32:55,105 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:32:55,105 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:32:55" (2/2) ... [2023-10-12 17:32:55,106 INFO L332 chiAutomizerObserver]: Analyzing ICFG hard1.wvr.bpl [2023-10-12 17:32:55,153 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:32:55,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 106 flow [2023-10-12 17:32:55,191 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2023-10-12 17:32:55,191 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:32:55,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:32:55,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 106 flow [2023-10-12 17:32:55,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2023-10-12 17:32:55,201 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:32:55,211 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 29 transitions, 82 flow [2023-10-12 17:32:55,213 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 29 transitions, 82 flow [2023-10-12 17:32:55,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 29 transitions, 82 flow [2023-10-12 17:32:55,220 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2023-10-12 17:32:55,220 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:32:55,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:32:55,221 INFO L119 LiptonReduction]: Number of co-enabled transitions 288 [2023-10-12 17:32:55,345 INFO L134 LiptonReduction]: Checked pairs total: 468 [2023-10-12 17:32:55,345 INFO L136 LiptonReduction]: Total number of compositions: 7 [2023-10-12 17:32:55,354 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:32:55,354 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:32:55,354 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:32:55,354 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:32:55,355 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:32:55,355 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:32:55,355 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:32:55,355 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:32:55,355 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 places, 23 transitions, 70 flow [2023-10-12 17:32:55,364 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:32:55,364 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:32:55,364 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:32:55,364 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:32:55,369 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:32:55,369 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 places, 23 transitions, 70 flow [2023-10-12 17:32:55,370 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:32:55,370 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:32:55,370 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:32:55,370 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:32:55,374 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[] 48#[L63]true [96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 50#[L19-1, L63-1]true [2023-10-12 17:32:55,374 INFO L750 eck$LassoCheckResult]: Loop: 50#[L19-1, L63-1]true [79] L19-1-->L19: Formula: (< 0 v_n1_1) InVars {n1=v_n1_1} OutVars{n1=v_n1_1} AuxVars[] AssignedVars[] 53#[L63-1, L19]true [81] L19-->L19-1: Formula: (let ((.cse0 (< 0 v_n1_13))) (and (= v_n1_12 (ite .cse0 (+ (- 1) v_n1_13) v_n1_13)) (= v_p1_7 (ite .cse0 (+ v_p1_8 v_m_7) v_p1_8)))) InVars {p1=v_p1_8, m=v_m_7, n1=v_n1_13} OutVars{p1=v_p1_7, m=v_m_7, n1=v_n1_12} AuxVars[] AssignedVars[p1, n1] 50#[L19-1, L63-1]true [2023-10-12 17:32:55,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:55,379 INFO L85 PathProgramCache]: Analyzing trace with hash 3258, now seen corresponding path program 1 times [2023-10-12 17:32:55,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:55,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768397308] [2023-10-12 17:32:55,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:55,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:55,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:55,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:55,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:55,478 INFO L85 PathProgramCache]: Analyzing trace with hash 3491, now seen corresponding path program 1 times [2023-10-12 17:32:55,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:55,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787131942] [2023-10-12 17:32:55,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:55,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:55,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:55,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:55,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:55,517 INFO L85 PathProgramCache]: Analyzing trace with hash 3133468, now seen corresponding path program 1 times [2023-10-12 17:32:55,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:55,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995721840] [2023-10-12 17:32:55,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:55,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:55,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:55,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:55,575 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:32:55,576 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:32:55,576 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:32:55,576 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:32:55,576 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:32:55,576 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:55,576 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:32:55,576 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:32:55,576 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:32:55,576 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:32:55,576 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:32:55,587 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:55,595 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:55,627 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:32:55,627 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:32:55,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:55,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:55,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:55,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:32:55,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:55,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:32:55,671 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:32:55,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {m=0, p1=0} Honda state: {m=0, p1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:32:55,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:55,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:55,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:55,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:55,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:32:55,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:32:55,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:55,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:55,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:55,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:55,698 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:55,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:32:55,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:32:55,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:55,717 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:32:55,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:55,719 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:32:55,719 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:32:55,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:32:55,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:32:55,720 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:32:55,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:55,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:32:55,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:32:55,720 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:32:55,720 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:32:55,720 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:32:55,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:55,734 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:55,769 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:32:55,772 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:32:55,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:55,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:55,775 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:55,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:32:55,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:32:55,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:32:55,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:32:55,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:32:55,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:32:55,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:32:55,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:32:55,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:32:55,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:32:55,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:55,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:55,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:55,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:55,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:32:55,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:32:55,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:32:55,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:32:55,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:32:55,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:32:55,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:32:55,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:32:55,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:32:55,845 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:32:55,861 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:32:55,861 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:32:55,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:55,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:55,865 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:55,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:32:55,868 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:32:55,868 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:32:55,868 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:32:55,869 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n1) = 1*n1 Supporting invariants [] [2023-10-12 17:32:55,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:55,882 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:32:55,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:32:55,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:32:55,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:32:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:32:55,939 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:32:55,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:32:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:32:55,982 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:32:55,985 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:32:56,156 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 340 transitions. [2023-10-12 17:32:56,157 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:32:56,165 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:32:56,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:32:56,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:32:56,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 220 transitions. [2023-10-12 17:32:56,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:32:56,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:56,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:32:56,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:56,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 2 letters. Loop has 4 letters. [2023-10-12 17:32:56,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:56,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 358 transitions, 1816 flow [2023-10-12 17:32:56,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-10-12 17:32:56,412 INFO L124 PetriNetUnfolderBase]: 2290/3070 cut-off events. [2023-10-12 17:32:56,412 INFO L125 PetriNetUnfolderBase]: For 511/511 co-relation queries the response was YES. [2023-10-12 17:32:56,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6727 conditions, 3070 events. 2290/3070 cut-off events. For 511/511 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 12558 event pairs, 363 based on Foata normal form. 0/2051 useless extension candidates. Maximal degree in co-relation 5164. Up to 654 conditions per place. [2023-10-12 17:32:56,419 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 46 places, 358 transitions, 1816 flow [2023-10-12 17:32:56,427 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 46 places, 358 transitions, 1816 flow [2023-10-12 17:32:56,427 INFO L430 stractBuchiCegarLoop]: Abstraction has has 46 places, 358 transitions, 1816 flow [2023-10-12 17:32:56,427 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:32:56,427 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 places, 358 transitions, 1816 flow [2023-10-12 17:32:56,430 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:32:56,431 INFO L124 PetriNetUnfolderBase]: 13/26 cut-off events. [2023-10-12 17:32:56,431 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-10-12 17:32:56,431 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:32:56,432 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[] 48#[L63]true [96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 50#[L19-1, L63-1]true [99] L63-1-->L30-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 107#[L19-1, L64, L30-1]true [2023-10-12 17:32:56,432 INFO L750 eck$LassoCheckResult]: Loop: 107#[L19-1, L64, L30-1]true [83] L30-1-->L30: Formula: (< 1 v_n1_6) InVars {n1=v_n1_6} OutVars{n1=v_n1_6} AuxVars[] AssignedVars[] 110#[L19-1, L64, L30]true [85] L30-->L30-1: Formula: (let ((.cse0 (< 1 v_n1_17))) (and (= (ite .cse0 (+ (* 2 v_m_9) v_p1_12) v_p1_12) v_p1_11) (= v_n1_16 (ite .cse0 (+ (- 2) v_n1_17) v_n1_17)))) InVars {p1=v_p1_12, m=v_m_9, n1=v_n1_17} OutVars{p1=v_p1_11, m=v_m_9, n1=v_n1_16} AuxVars[] AssignedVars[p1, n1] 107#[L19-1, L64, L30-1]true [2023-10-12 17:32:56,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:56,435 INFO L85 PathProgramCache]: Analyzing trace with hash 101097, now seen corresponding path program 1 times [2023-10-12 17:32:56,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:56,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313753826] [2023-10-12 17:32:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:56,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:56,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:56,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:56,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:56,454 INFO L85 PathProgramCache]: Analyzing trace with hash 3619, now seen corresponding path program 1 times [2023-10-12 17:32:56,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:56,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556143481] [2023-10-12 17:32:56,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:56,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:56,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:56,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:56,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:56,476 INFO L85 PathProgramCache]: Analyzing trace with hash 97156875, now seen corresponding path program 1 times [2023-10-12 17:32:56,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:56,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630209012] [2023-10-12 17:32:56,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:56,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:56,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:56,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:56,517 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:32:56,517 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:32:56,518 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:32:56,518 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:32:56,518 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:32:56,518 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:56,518 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:32:56,518 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:32:56,518 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:32:56,518 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:32:56,518 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:32:56,519 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:56,523 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:56,543 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:32:56,543 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:32:56,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:56,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:56,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:56,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:32:56,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:32:56,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:56,571 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:32:56,571 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {m=0, p1=0} Honda state: {m=0, p1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:32:56,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:56,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:56,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:56,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:56,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:32:56,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:32:56,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:56,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:56,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:56,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:56,621 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:56,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:32:56,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:32:56,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:56,653 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:32:56,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:56,659 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:32:56,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:32:56,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:32:56,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:32:56,659 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:32:56,659 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:56,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:32:56,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:32:56,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:32:56,660 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:32:56,660 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:32:56,660 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:56,665 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:56,687 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:32:56,690 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:32:56,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:56,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:56,691 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:56,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:32:56,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:32:56,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:32:56,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:32:56,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:32:56,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:32:56,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:32:56,706 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:32:56,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:32:56,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:32:56,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:56,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:56,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:56,738 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:56,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-10-12 17:32:56,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:32:56,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:32:56,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:32:56,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:32:56,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:32:56,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:32:56,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:32:56,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:32:56,757 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:32:56,759 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-10-12 17:32:56,759 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:32:56,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:56,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:56,760 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:56,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-10-12 17:32:56,764 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:32:56,764 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:32:56,764 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:32:56,764 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n1) = 1*n1 Supporting invariants [] [2023-10-12 17:32:56,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:56,771 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:32:56,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:32:56,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:32:56,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:32:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:32:56,804 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:32:56,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:32:56,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:32:56,819 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:32:56,819 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:32:56,918 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 337 transitions. [2023-10-12 17:32:56,918 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:32:56,950 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:32:56,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:32:56,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:32:56,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 220 transitions. [2023-10-12 17:32:56,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:32:56,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:56,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:32:56,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:56,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:32:56,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:56,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 5548 transitions, 39432 flow [2023-10-12 17:32:57,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:57,782 INFO L124 PetriNetUnfolderBase]: 6726/8762 cut-off events. [2023-10-12 17:32:57,783 INFO L125 PetriNetUnfolderBase]: For 1364/1364 co-relation queries the response was YES. [2023-10-12 17:32:57,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27886 conditions, 8762 events. 6726/8762 cut-off events. For 1364/1364 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 39453 event pairs, 425 based on Foata normal form. 0/5218 useless extension candidates. Maximal degree in co-relation 22311. Up to 2459 conditions per place. [2023-10-12 17:32:57,793 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 60 places, 5548 transitions, 39432 flow [2023-10-12 17:32:57,847 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 60 places, 5548 transitions, 39432 flow [2023-10-12 17:32:57,848 INFO L430 stractBuchiCegarLoop]: Abstraction has has 60 places, 5548 transitions, 39432 flow [2023-10-12 17:32:57,848 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:32:57,848 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 places, 5548 transitions, 39432 flow [2023-10-12 17:32:57,950 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:32:57,950 INFO L124 PetriNetUnfolderBase]: 247/364 cut-off events. [2023-10-12 17:32:57,951 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-10-12 17:32:57,951 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:32:57,952 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[] 48#[L63]true [96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 50#[L19-1, L63-1]true [79] L19-1-->L19: Formula: (< 0 v_n1_1) InVars {n1=v_n1_1} OutVars{n1=v_n1_1} AuxVars[] AssignedVars[] 53#[L63-1, L19]true [99] L63-1-->L30-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 162#[L64, L30-1, L19]true [102] L64-->L41-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 164#[L30-1, L19, L65, L41-1]true [2023-10-12 17:32:57,952 INFO L750 eck$LassoCheckResult]: Loop: 164#[L30-1, L19, L65, L41-1]true [87] L41-1-->L41: Formula: (< 0 v_n2_6) InVars {n2=v_n2_6} OutVars{n2=v_n2_6} AuxVars[] AssignedVars[] 167#[L41, L30-1, L19, L65]true [89] L41-->L41-1: Formula: (let ((.cse0 (< 0 v_n2_17))) (and (= (ite .cse0 (+ (- 1) v_n2_17) v_n2_17) v_n2_16) (= v_p2_11 (ite .cse0 (+ v_m_11 v_p2_12) v_p2_12)))) InVars {m=v_m_11, n2=v_n2_17, p2=v_p2_12} OutVars{m=v_m_11, n2=v_n2_16, p2=v_p2_11} AuxVars[] AssignedVars[n2, p2] 164#[L30-1, L19, L65, L41-1]true [2023-10-12 17:32:57,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:57,952 INFO L85 PathProgramCache]: Analyzing trace with hash 97138168, now seen corresponding path program 1 times [2023-10-12 17:32:57,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:57,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246498474] [2023-10-12 17:32:57,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:57,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:57,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:57,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:57,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:57,978 INFO L85 PathProgramCache]: Analyzing trace with hash 3747, now seen corresponding path program 1 times [2023-10-12 17:32:57,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:57,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735059552] [2023-10-12 17:32:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:57,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:57,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:57,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:57,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:57,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1139498278, now seen corresponding path program 1 times [2023-10-12 17:32:57,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:57,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550924984] [2023-10-12 17:32:57,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:57,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:57,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:57,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:58,016 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:32:58,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:32:58,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:32:58,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:32:58,016 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:32:58,016 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:58,016 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:32:58,016 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:32:58,016 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:32:58,017 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:32:58,017 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:32:58,018 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:58,021 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:58,045 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:32:58,045 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:32:58,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:58,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:58,046 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:58,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-10-12 17:32:58,052 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:32:58,052 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:58,074 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:32:58,074 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {m=0, p2=0} Honda state: {m=0, p2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:32:58,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:58,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:58,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:58,093 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:58,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-10-12 17:32:58,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:32:58,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:58,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:58,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:58,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:58,129 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:58,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-10-12 17:32:58,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:32:58,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:58,160 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:32:58,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:58,181 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:32:58,181 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:32:58,181 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:32:58,181 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:32:58,181 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:32:58,181 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:58,181 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:32:58,181 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:32:58,181 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:32:58,181 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:32:58,181 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:32:58,182 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:58,186 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:58,217 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:32:58,217 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:32:58,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:58,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:58,229 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:58,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-10-12 17:32:58,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:32:58,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:32:58,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:32:58,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:32:58,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:32:58,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:32:58,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:32:58,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:32:58,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:32:58,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-10-12 17:32:58,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:58,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:58,275 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:58,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-10-12 17:32:58,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:32:58,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:32:58,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:32:58,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:32:58,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:32:58,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:32:58,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:32:58,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:32:58,300 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:32:58,303 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:32:58,303 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:32:58,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:58,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:58,305 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:32:58,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-10-12 17:32:58,308 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:32:58,308 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:32:58,308 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:32:58,308 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n2) = 1*n2 Supporting invariants [] [2023-10-12 17:32:58,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-10-12 17:32:58,315 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:32:58,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:32:58,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:32:58,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:32:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:32:58,342 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:32:58,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:32:58,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:32:58,351 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:32:58,351 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:32:58,428 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 340 transitions. [2023-10-12 17:32:58,428 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:32:58,955 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:32:58,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:32:58,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:32:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 220 transitions. [2023-10-12 17:32:58,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:32:58,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:58,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:32:58,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:58,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 5 letters. Loop has 4 letters. [2023-10-12 17:32:58,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:58,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 87144 transitions, 795456 flow [2023-10-12 17:33:59,317 INFO L124 PetriNetUnfolderBase]: 23687/30638 cut-off events. [2023-10-12 17:33:59,317 INFO L125 PetriNetUnfolderBase]: For 5015/5015 co-relation queries the response was YES. [2023-10-12 17:33:59,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127089 conditions, 30638 events. 23687/30638 cut-off events. For 5015/5015 co-relation queries the response was YES. Maximal size of possible extension queue 1291. Compared 155404 event pairs, 260 based on Foata normal form. 0/17067 useless extension candidates. Maximal degree in co-relation 98406. Up to 8976 conditions per place. [2023-10-12 17:33:59,342 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 74 places, 87144 transitions, 795456 flow [2023-10-12 17:34:00,111 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 74 places, 87144 transitions, 795456 flow [2023-10-12 17:34:00,111 INFO L430 stractBuchiCegarLoop]: Abstraction has has 74 places, 87144 transitions, 795456 flow [2023-10-12 17:34:00,111 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:34:00,111 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 places, 87144 transitions, 795456 flow [2023-10-12 17:34:06,106 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:34:06,106 INFO L124 PetriNetUnfolderBase]: 1628/2120 cut-off events. [2023-10-12 17:34:06,106 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2023-10-12 17:34:06,106 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:34:06,107 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[] 48#[L63]true [96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 50#[L19-1, L63-1]true [79] L19-1-->L19: Formula: (< 0 v_n1_1) InVars {n1=v_n1_1} OutVars{n1=v_n1_1} AuxVars[] AssignedVars[] 53#[L63-1, L19]true [99] L63-1-->L30-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 162#[L64, L30-1, L19]true [102] L64-->L41-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 164#[L30-1, L19, L65, L41-1]true [81] L19-->L19-1: Formula: (let ((.cse0 (< 0 v_n1_13))) (and (= v_n1_12 (ite .cse0 (+ (- 1) v_n1_13) v_n1_13)) (= v_p1_7 (ite .cse0 (+ v_p1_8 v_m_7) v_p1_8)))) InVars {p1=v_p1_8, m=v_m_7, n1=v_n1_13} OutVars{p1=v_p1_7, m=v_m_7, n1=v_n1_12} AuxVars[] AssignedVars[p1, n1] 227#[L19-1, L30-1, L41-1, L65]true [105] L65-->L52-1: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2] 229#[L19-1, L66, L52-1, L30-1, L41-1]true [91] L52-1-->L52: Formula: (< 1 v_n2_7) InVars {n2=v_n2_7} OutVars{n2=v_n2_7} AuxVars[] AssignedVars[] 231#[L19-1, L66, L30-1, L52, L41-1]true [2023-10-12 17:34:06,107 INFO L750 eck$LassoCheckResult]: Loop: 231#[L19-1, L66, L30-1, L52, L41-1]true [93] L52-->L52-1: Formula: (let ((.cse0 (< 1 v_n2_13))) (and (= (ite .cse0 (+ (- 2) v_n2_13) v_n2_13) v_n2_12) (= v_p2_7 (ite .cse0 (+ (* 2 v_m_5) v_p2_8) v_p2_8)))) InVars {m=v_m_5, n2=v_n2_13, p2=v_p2_8} OutVars{m=v_m_5, n2=v_n2_12, p2=v_p2_7} AuxVars[] AssignedVars[n2, p2] 229#[L19-1, L66, L52-1, L30-1, L41-1]true [91] L52-1-->L52: Formula: (< 1 v_n2_7) InVars {n2=v_n2_7} OutVars{n2=v_n2_7} AuxVars[] AssignedVars[] 231#[L19-1, L66, L30-1, L52, L41-1]true [2023-10-12 17:34:06,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:34:06,108 INFO L85 PathProgramCache]: Analyzing trace with hash -964713429, now seen corresponding path program 1 times [2023-10-12 17:34:06,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:34:06,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942856824] [2023-10-12 17:34:06,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:34:06,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:34:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:34:06,115 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:34:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:34:06,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:34:06,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:34:06,122 INFO L85 PathProgramCache]: Analyzing trace with hash 3935, now seen corresponding path program 1 times [2023-10-12 17:34:06,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:34:06,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185841637] [2023-10-12 17:34:06,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:34:06,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:34:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:34:06,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:34:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:34:06,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:34:06,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:34:06,130 INFO L85 PathProgramCache]: Analyzing trace with hash 623333641, now seen corresponding path program 1 times [2023-10-12 17:34:06,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:34:06,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707146693] [2023-10-12 17:34:06,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:34:06,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:34:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:34:06,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:34:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:34:06,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:34:06,182 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:34:06,182 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:34:06,182 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:34:06,182 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:34:06,182 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:34:06,182 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:34:06,182 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:34:06,182 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:34:06,182 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:34:06,182 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:34:06,182 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:34:06,184 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:34:06,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:34:06,207 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:34:06,207 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:34:06,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:34:06,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:34:06,222 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:34:06,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-10-12 17:34:06,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:34:06,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:34:06,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-10-12 17:34:06,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:34:06,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:34:06,270 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:34:06,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-10-12 17:34:06,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:34:06,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:34:06,329 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:34:06,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-10-12 17:34:06,333 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:34:06,333 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:34:06,333 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:34:06,333 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:34:06,333 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:34:06,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:34:06,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:34:06,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:34:06,333 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:34:06,333 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:34:06,333 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:34:06,334 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:34:06,338 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:34:06,356 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:34:06,356 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:34:06,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:34:06,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:34:06,358 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:34:06,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-10-12 17:34:06,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:34:06,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:34:06,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:34:06,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:34:06,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:34:06,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:34:06,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:34:06,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:34:06,380 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:34:06,382 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:34:06,383 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:34:06,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:34:06,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:34:06,385 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:34:06,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-10-12 17:34:06,387 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:34:06,387 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:34:06,387 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:34:06,387 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n2) = 1*n2 Supporting invariants [] [2023-10-12 17:34:06,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-10-12 17:34:06,397 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:34:06,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:34:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:34:06,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:34:06,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:34:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:34:06,425 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:34:06,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:34:06,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:34:06,485 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:34:06,485 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:34:06,574 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 342 transitions. [2023-10-12 17:34:06,574 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:34:08,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-10-12 17:34:10,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-10-12 17:34:29,816 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:34:29,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:34:29,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:34:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 220 transitions. [2023-10-12 17:34:29,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 8 letters. Loop has 2 letters. [2023-10-12 17:34:29,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:34:29,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 10 letters. Loop has 2 letters. [2023-10-12 17:34:29,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:34:29,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 8 letters. Loop has 4 letters. [2023-10-12 17:34:29,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:34:29,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 1380112 transitions, 15373984 flow Received shutdown request... [2023-10-12 17:36:12,815 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-10-12 17:36:12,983 WARN L144 chiPetriNetCegarLoop]: Unhandled de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user.occured during abstraction size reduction. Continuing with non-reduced net [2023-10-12 17:36:12,983 INFO L430 stractBuchiCegarLoop]: Abstraction has has 88 places, 1380112 transitions, 15373984 flow [2023-10-12 17:36:12,983 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:36:12,983 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 88 places, 1380112 transitions, 15373984 flow [2023-10-12 17:36:13,414 WARN L343 stractBuchiCegarLoop]: Verification cancelled [2023-10-12 17:36:13,423 INFO L201 PluginConnector]: Adding new model hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:36:13 BoogieIcfgContainer [2023-10-12 17:36:13,423 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:36:13,428 INFO L158 Benchmark]: Toolchain (without parser) took 198584.82ms. Allocated memory was 206.6MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 160.6MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 4.1GB. Max. memory is 8.0GB. [2023-10-12 17:36:13,428 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.22ms. Allocated memory is still 206.6MB. Free memory is still 161.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:36:13,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.07ms. Allocated memory is still 206.6MB. Free memory was 160.6MB in the beginning and 158.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:36:13,429 INFO L158 Benchmark]: Boogie Preprocessor took 18.32ms. Allocated memory is still 206.6MB. Free memory was 158.9MB in the beginning and 157.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:36:13,440 INFO L158 Benchmark]: RCFGBuilder took 212.76ms. Allocated memory is still 206.6MB. Free memory was 157.8MB in the beginning and 146.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:36:13,441 INFO L158 Benchmark]: BuchiAutomizer took 198322.98ms. Allocated memory was 206.6MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 146.9MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. [2023-10-12 17:36:13,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22ms. Allocated memory is still 206.6MB. Free memory is still 161.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.07ms. Allocated memory is still 206.6MB. Free memory was 160.6MB in the beginning and 158.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.32ms. Allocated memory is still 206.6MB. Free memory was 158.9MB in the beginning and 157.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 212.76ms. Allocated memory is still 206.6MB. Free memory was 157.8MB in the beginning and 146.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 198322.98ms. Allocated memory was 206.6MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 146.9MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 4 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function n1 and consists of 5 locations. One deterministic module has affine ranking function n1 and consists of 5 locations. One deterministic module has affine ranking function n2 and consists of 5 locations. One deterministic module has affine ranking function n2 and consists of 5 locations. The remainder module has 15373984 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 198.2s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 1.5s. Construction of modules took 0.2s. Büchi inclusion checks took 24.2s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 454 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 450 mSDsluCounter, 476 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 228 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 479 IncrementalHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 248 mSDtfsCounter, 479 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf96 smp100 dnf100 smp100 tf112 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.1s - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Buchi Automizer is unable to decide termination: Timeout while executing PetriNetUnfolderBuchi. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 38 PlacesBefore, 32 PlacesAfterwards, 29 TransitionsBefore, 23 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 468 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 382, independent: 358, independent conditional: 0, independent unconditional: 358, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 175, independent: 171, independent conditional: 0, independent unconditional: 171, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 175, independent: 163, independent conditional: 0, independent unconditional: 163, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 382, independent: 187, independent conditional: 0, independent unconditional: 187, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 175, unknown conditional: 0, unknown unconditional: 175] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2023-10-12 17:36:13,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 !SESSION 2023-10-12 17:32:52.220 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.18 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl Command-line arguments: -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl !ENTRY org.eclipse.osgi 4 0 2023-10-12 17:36:13.680 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66b30640d/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66b30640d/.metadata/.log.